"Due to delivery issues the iPhone 6 will not be on sale this weekend in NSW, WA, SA and some QLD stores. It will however be on sale on the 24 October. Stores are able to take names until close of business Sunday if customers would like to wait for their stock to arrive. Therefore, customers can still order the phone," Aldi said in a statement to 9Finance.

The refurbished Apple smartphones will be available in two colours (Space Grey or Silver) and will come unlocked to service providers with a 12-month warranty.

So is it worth the cost? Other online retailers are listing refurbished 16GB iPhone 6 models for around $469, so with a price tag $20 cheaper, it isn't exactly one of the jaw-dropping bargains we have come to expect from the discount retailer. It is convenient, though.

Apple's online store doesn't sell the iPhone 6 anymore. After releasing the new iPhone 8 and the iPhone X last month, the tech company is now only offering the slightly updated iPhone 6s from $699, brand new.

This isn't the first time Aldi has dipped its toe in the smartphone market. In August, the supermarket chain advertised second-hand 16GB iPhone 5S models as a part of its "Special Buys" offering.

Aldi's "Special Buys" promotions have reached cult status. It is not uncommon to see long lines forming before stores even open their doors and products selling out within seconds.

Last month, a $99 Fabric Accent Arm Chair sold out within 20 seconds in some stores across the country.

Kane from Sydney, who lined up at the Chatswood store since 8am, was sent by his wife to grab one of the six chairs stocked on the shelf.

"I need to rush in and get it or I'm in big trouble," he told news.com.au ahead of doors opening.

"It's my only job is to come home with one ... so it should be fun with this crowd. I just need to run."

Then a week later, a $199 ride-on Mercedes-Benz kids toy had parents lined up from 7.15am. One shopper in Lithgow, NSW, who lined up with "at least 40 or 50 people" was left outraged when their local store had limited stock.

"Most people were lining up hoping to score a Kids ride on," the angry shopper wrote.

"We were hoping to get one for our sons upcoming birthday ... we knew it would be competitive and we may well miss out but when we got into our store we find they had only been supplied ONE of each!!??

"To have all this hype over a catalogue so heavily advertised to find out every store within 50-100ks is in the same position? Leaving so many customers disappointed! If you can't supply demand don't advertise ... supplying a store with ONE item for a catalogue with no rainchecks is just bad faith and bad practice."